sporopollenin
[ spawr-uh-pol-uh-nin ]
/ ˌspɔr əˈpɒl ə nɪn /
noun
an inert, tough polymer forming the resistant outer coat of a pollen grain or spore.
Words nearby sporopollenin
sporont,
sporophore,
sporophyll,
sporophyte,
sporoplasm,
sporopollenin,
sporothrix,
sporotrichosis,
sporozoa,
sporozoan,
sporozoite
Scientific definitions for sporopollenin
sporopollenin
[ spôr′ə-pŏl′ə-nĭn ]
An organic polymer that is extremely resistant to degradation. Pollen grains and many kinds of spores have a protective outer coating of sporopollenin, which is so durable that microfossils of sporopollenin are found in rocks over 500 million years old.